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Re:Show HN: A simple Unix-like operating system that runs Doom by mysterydip on Saturday September 07, 2019 @11:59AM (#20904589)
can't believe I never checked OSDev before... what a trove of info! I'll spend a while digesting there, thanks!
Re:Show HN: A simple Unix-like operating system that runs Doom by unixhero on Saturday September 07, 2019 @12:20PM (#20904730)
And deeper down the rabbithole: http://wikichip.org